I cannot say if this is 100% true but Felder machines I have helped with have overload protection. My KF700, Dual51 and K975 do have this protection. I am also not sure if my RL125 or FD250 have any such protection, will need to investigate.

I wired my shop myself and had it inspected. I went towards the safe side if I was not sure to avoid any issues during inspection. The CB is to protect the wire as a short could occur between the CB and the machine which would not be protected by the machine overload protection.

If your work is done by a licensed electrician then they should know best.

I recently helped someone with Hammer. If you open the switch box, you will see a 10-16A slide switch (or something similar depending upon motor size). Check label of your motor to determine FLA. Measure machine current during idle and then switch meter to max setting. Make a heavy cut to stall the motor. Check current on the meter. If it is under FLA+ 2A and total is under 16A then may adjust the slide switch to match the current. May help you avoid nuisance trips.